What is anodic oxidation of aluminum alloy?

The anodic oxidation of aluminum is an electrolytic oxidation process in which the surface of aluminum and aluminum alloy is usually transformed into an oxide film, which has protective, decorative and other functional properties. According to this definition, the anodic oxidation of aluminum only includes the process of forming anodic oxide film.

Anodic oxidation, electrochemical oxidation of metals or alloys. Aluminum and its alloy in the corresponding electrolyte and specific process conditions, due to the action of impressed current, aluminum products (anode) on the formation of a layer of oxide film process. Anodizing, unless otherwise specified, usually means anodizing sulfuric acid.

In order to overcome the defects of aluminum alloy surface hardness, wear resistance and so on, expand the scope of application, prolong the service life, surface treatment technology has become an indispensable part of the use of aluminum alloy, and anodic oxidation technology is currently the most widely used and most successful.

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